Funding for this research was provided by:
Institut national de l'information géographique et forestière
Agence Nationale de la Recherche
Article History
Received: 3 April 2020
Accepted: 16 July 2020
First Online: 5 August 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
Free to read: This content has been made available to all.